Invention Grant
US4069307A Drug-delivery device comprising certain polymeric materials for
controlled release of drug
失效
药物递送装置包含用于药物控制释放的某些聚合材料
- Patent Title: Drug-delivery device comprising certain polymeric materials for controlled release of drug
- Patent Title (中): 药物递送装置包含用于药物控制释放的某些聚合材料
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Application No.: US582353Application Date: 1975-05-30
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Publication No.: US4069307APublication Date: 1978-01-17
- Inventor: Takeru Higuchi , Anwar Hussain
- Applicant: Takeru Higuchi , Anwar Hussain
- Applicant Address: CA Palo Alto
- Assignee: Alza Corporation
- Current Assignee: Alza Corporation
- Current Assignee Address: CA Palo Alto
- Main IPC: A61F6/14
- IPC: A61F6/14 ; A61K9/00 ; A61K9/26 ; A61K9/70 ; A61M31/00
Abstract:
Drug-delivery device for releasing a drug at a continuous and controlled rate for a prolonged period of time is comprised of a shaped body of polymeric material containing a pharmaceutically acceptable drug and permeable to passage of the drug by diffusion. The polymeric material is an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 4 to 80% by weight and a melt index of about 0.1 to 1000 grams per 10 minutes.
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